화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.62, 120-129, June, 2018
DOI10.1016/j.jiec.2017.12.050  Export Citation
Effects of CeZrO2.Al2O3 support composition of metal-foam-coated Pd.Rh catalysts for the steam-biogas reforming reaction
Partho Sarothi Roy1, Jinwoo Song2, 3, Kiseok Kim4, Ji-Man Kim2, Chan Seung Park1, and Arun S.K. Raju1, †
  • 1College of Engineering-Center for Environmental Research and Technology (CE-CERT), University of California, Riverside, Riverside, CA 92507, United States, USA
  • 2Department of Chemistry, Sungkyunkwan University, Republic of Korea
  • 3R & D Center, Heesung Catalysts Corp., Republic of Korea
  • 4School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea
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Biogas conversion to syngas by steam reforming was studied over metal-foam-coated Pd.Rh catalysts with variable CeZrO2.Al2O3 support compositions. Catalysts with a higher CeZrO2/Al2O3 ratio exhibited greater CH4 and CO2 conversions and higher H2/CH4 yields, while displaying lower H2/CO ratios and reduced coke formation. Catalytic stability tests over 200 h showed CH4 and CO2 conversion rates of 93- 97% and 0-5%, respectively. CeZrO2-modification of the catalyst leads to reduction in the BET area and metal dispersion. Sintering was observed in used catalysts; however there was no clear correlation between the extent of morphological deterioration and the CeZrO2/Al2O3 ratio of the catalyst support.
Keywords:Steam-biogas reforming;Biogas conversion;Metal-foam-coated Pd.Rh catalysts;CeZrO2.Al2O3 support compositions;Catalyst activity and stability
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